WO2000002881A2 - Use of cysteine derivatives for preparing a medicine for treating pathologies resulting from the formation of heterotrimeric g protein - Google Patents
Use of cysteine derivatives for preparing a medicine for treating pathologies resulting from the formation of heterotrimeric g protein Download PDFInfo
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- WO2000002881A2 WO2000002881A2 PCT/FR1999/001609 FR9901609W WO0002881A2 WO 2000002881 A2 WO2000002881 A2 WO 2000002881A2 FR 9901609 W FR9901609 W FR 9901609W WO 0002881 A2 WO0002881 A2 WO 0002881A2
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- amino
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- thiopropyl
- pyrazine
- tetrahydroimidazo
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- GNDLFUUEHZTVAZ-QTEQDKRBSA-N CCCC[C@@H](C1)N(C[C@H](CSSC[C@@H]2N)NC2=O)CCN1C(c1cccc2c1cccc2)=O Chemical compound CCCC[C@@H](C1)N(C[C@H](CSSC[C@@H]2N)NC2=O)CCN1C(c1cccc2c1cccc2)=O GNDLFUUEHZTVAZ-QTEQDKRBSA-N 0.000 description 1
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- C07D487/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains two hetero rings
- C07D487/04—Ortho-condensed systems
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- A61K31/215—Esters, e.g. nitroglycerine, selenocyanates of carboxylic acids
- A61K31/22—Esters, e.g. nitroglycerine, selenocyanates of carboxylic acids of acyclic acids, e.g. pravastatin
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- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
- A61K31/498—Pyrazines or piperazines ortho- and peri-condensed with carbocyclic ring systems, e.g. quinoxaline, phenazine
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Definitions
- cysteine derivatives to prepare a medicament for treating pathologies which result from the formation of the heterotimeric protein G
- the present invention relates in particular to the use of cysteine derivatives for preparing a medicament intended to treat pathologies which result from the formation of the heterotrimeric G protein.
- diseases include in particular diseases related to the following biological functions or disorders: smell, taste, perception of light, neurotransmission, neurodegeneration, functioning of the endocrine and exocrine glands, autocrine and paracrine regulation, blood pressure, embryogenesis, benign cell proliferation, oncogenesis , viral infection, immunological functions, diabetes, obesity, and benign and malignant proliferative diseases.
- the G proteins are in fact the structural association of three distinct subunits called ⁇ , ⁇ and ⁇ , but function as dissociable entities constituted by ⁇ subunits on one side and ⁇ / ⁇ dimers on the other. .
- the G proteins participate in the transmission of signals from outside the cell thanks to its interaction with receptors with seven transmembrane domains inwards via various effectors including adenylate cyclase, phospholipase C or ion channels.
- the enzyme adenylate cyclase generates cyclic AMP (cAMP) (cf. Gilman, A. G. Biosci. Rep. 15, 65-97 (1995)).
- cAMP cyclic AMP
- it is known that to activate adenylate cyclase it is necessary for the G proteins to be transiently in a heterotrimeric form, in which form the monomer constituted by an ⁇ subunit is associated with the dimer constituted by the ⁇ and ⁇ . It is only in this situation that the signal from outside the cell can activate the ⁇ subunit of a G protein, which after dissociation can modulate adenylate cyclase and modulate cAMP production.
- ⁇ / ⁇ dimers can directly activate effectors leading to the activation of kinases regulated by extracellular signals (ERKs) or MAP kinases.
- ERKs extracellular signals
- MAP kinases kinases regulated by extracellular signals
- a direct link between the ⁇ / ⁇ subunits and the src or src like kinases has been demonstrated (cf. Gutkind, J.S. J. Biol. Chem. 273, 1839-1842 (1998)).
- bacterial toxins such as Vibrio choiera and Bortella pertussis
- peptides such as mastoparan and suramin
- G proteins cf. Freissmuth, M., Boehm, S., Beindl, W. , et al. Mol. Pharmacol. 49, 602-611 (1996); Boehm, S., Huck, S., Motejlek, A., et al. Journal of Neurochemistry 66, 1019-1026 (1996); Cachero, TG , Rigual, R., Rocher, A. & Gonzalez, C. Eur.J. Neurosci.
- cholera toxin modifies the as subunit of protein G by adding ADP-ribose from NAD to an arginine-specific acceptor site. This completely blocks the activity of GTPase, causing persistent stimulation of its next effector, adenylate cyclase and leading to overproduction of cAMP.
- cAMP cyclopentasine sodium, taurine, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma, hematom, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma, hematoma
- X represents R 12 and Y represents R & , or X and Y complete a 6-membered ring, the set XY representing the radical -CH (R 8 ) -CH (R 9 ) -;
- Ri represents H, an alkyl or lower alkylthio radical
- R 2 and R 3 independently represent H or a lower alkyl radical
- R 4 represents H 2 or O
- R 5 represents H, or one of the lower alkyl, lower alkenyl, lower alkynyl, aryl, lower arylalkyl, heterocycle or heterocycle lower alkyl radicals, these radicals possibly being substituted by radicals chosen from the group consisting of an alkyl radical lower, -O-RJO, -S (O) m R ⁇ o (m representing 0, 1, or 2), -N (R ⁇ oXRn), -NC (O) -R ⁇ o, -NH- (SO 2 ) -R ⁇ o, - CO2-R10, C (O) -N (R 10 ) (Rn), and - (SO 2 ) - N (R ⁇ o Rn);
- R and R 7 independently represent H, a radical -C (O) -NH-CHRi 3 -C ⁇ 2 Ri 4 , or one of the lower alkyl, aryl, lower arylalkyl, heterocycle or lower alkyl heterocycle radicals, these radicals possibly being able to be substituted by radicals chosen from the group consisting of OH, alkyl or lower alkoxy, N (R ⁇ oXRn), COOH, CON (R ⁇ o) (Rn), and halo, or Rô and R 7 together form an aryl radical or a heterocycle ;
- R8 and R9 independently represent, H, or one of the lower alkyl, aryl, lower arylalkyl, heterocycle or heterocycle lower alkyl radicals, these radicals possibly being substituted by radicals chosen from the group consisting of OH, alkyl or lower alkoxy radicals , N (R ⁇ o) (R ⁇ ), COOH, CON (R 10 ) (Rn) and halo, or R ⁇ and R 9 together form an aryl radical or a heterocycle;
- Rio and Ri 1 independently represent H, an aryl or heterocycle radical, or an alkyl, arylalkyl or heterocycle lower alkyl radical;
- R 12 represents NR 9 , S, or O
- Ri 3 represents a lower alkyl radical optionally substituted by a radical chosen from the lower alkyl radicals, -OR 10 , -S (O) m Rjo (m representing 0, 1, or 2) and -N (R ⁇ oXRn); R 14 represents H or a lower alkyl radical; or the compounds of general formula (B):
- Wj represents a residue derived from a cysteine in reduced or unreduced form
- Ar represents a radical derived from an aminobenzoic acid whose aromatic nucleus is optionally substituted
- W 2 represents an amino acid, preferably an aliphatic amino acid
- Zj represents a lower alkyl radical
- Z 2 and Z 3 both represent H or else Z 2 and Z 3 together form a chain having from 2 to 4 elements chosen from the radicals -C (O) -, -CH 2 -, -CH (NH 2 ) - and -S-, it being understood that two successive elements are not both -C (O) -;
- lower alkyl radical means a linear or branched alkyl radical containing from 1 to 6 carbon atoms, and in particular the methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl and tert-butyl, pentyl, neopentyl radicals, isopentyle, hexyle, isohexyle.
- heterocycle radical is meant a radical consisting of one or more rings and including at least one heteroatom.
- arylalkyl radical, alkyl heterocycle, alkylthio or lower alkoxy is meant the radicals whose alkyl radical has the meaning indicated above.
- the radical Ar included in the formula (B) is optionally substituted by an alkyl radical comprising from 1 to 6 carbon atoms or an aryl radical, these alkyl or aryl radicals themselves being optionally preferentially substituted by an alkoxy radical having 1 to 4 carbon atoms, fluoro, chloro, bromo.
- the aryl radical preferably a phenyl can itself be substituted by an alkyl radical.
- the compounds of general formula (B) will be such that Ar represents a radical derived from an aminobenzoic acid whose aromatic nucleus is substituted by a phenyl radical and W 2 represents an aliphatic amino acid.
- the following compounds can be used to prepare medicaments intended to treat pathologies which result from the formation of the heterotrimeric G protein:
- the invention therefore relates first of all to the use of the compounds of general formula (A), (B) or (C) as described above for preparing a medicament intended for treating pathologies which result from the formation of the protein G heterotimeric.
- it relates to the use of said inhibitors for preparing medicaments intended for treating diseases linked to the following biological functions or disorders: smell, taste, perception of light, neurotransmission, neurodegeneration, functioning of the endocrine and exocrine glands, autocrine regulation and paracrine, blood pressure, embryogenesis, viral infection, immunological functions, diabetes and obesity.
- the invention relates to the use of the compounds of general formula (A), (B) or (C) for preparing a medicament intended to treat cholera, Acquired Immune Deficiency Syndrome (AIDS), diarrhea travel and early male familial puberty.
- the subject of the invention is also new products of general formula (A) numbered from 1 to 7 and described below in the examples, namely: - 7- (2-amino-1 -oxo-3-thiopropyl) -8- (cyclohexylmethyl) -2- (2-methylphenyl) - 5,6,7,8-tetrahydroimidazo [1,2a] pyrazine;
- the invention relates more particularly to the use of the abovementioned compounds for preparing a medicament intended for treating cholera, Acquired Immune Deficiency Syndrome (AIDS), traveler's diarrhea and male familial precocious puberty.
- the compounds of general formula (A) and their preparation are described in patent application WO 97/30053 or in the examples below.
- the compounds of general formula (B) and their preparation are described in patent application WO 96/21456.
- the preparation of the compounds of general formula (C) is described in PCT patent application WO 95/00497, except for the compound of formula (VII) for which the synthesis is described in the experimental part of this application.
- compositions comprising a compound of the invention can be in the form of solids, for example powders, granules, tablets, capsules, liposomes or suppositories.
- Suitable solid carriers can be, for example, calcium phosphate, magnesium stearate, talc, sugars, lactose, dextrin, starch, gelatin, cellulose, methyl cellulose, carboxymethyl cellulose sodium, polyvinylpyrrolidine and wax.
- compositions comprising a compound of the invention can also be presented in liquid form, for example, solutions, emulsions, suspensions or syrups.
- suitable liquid carriers can be, for example, water, organic solvents such as glycerol or glycols, as well as their mixtures, in varying proportions, in water.
- a medicament according to the invention can be done by topical, oral, parenteral, by injection (intramuscular, subcutaneous, intravenous, etc.), etc.
- the route of administration will of course depend on the type of disease to be treated.
- the administration dose envisaged for a medicament according to the invention is between 0.1 mg to 10 g depending on the type of pathology to be treated.
- Example 1 7- (2-amino-1-oxo-3-thiopropyI) -8- (cyclohexylmethyl) - 2- (2-methylphenyl) - 5,6,7,8-tetrahydroimidazo [1,2a] pyrazine: 1
- L-phenylalanine (10.0 g; 60.6 mmol) is combined with PtO 2 (430 mg) in acetic acid (60 ml) and the mixture is hydrogenated at 20-50 psi H2 overnight. A 5% aqueous HCl solution is added to the mixture to obtain a clear solution and the hydrogenation is continued until the consumption of hydrogen ceases. The catalyst is removed by filtration and the filtrate concentrated under reduced pressure. The residue is taken up in methanol and water and the pH adjusted to 4.4 by addition of a 10% NaOH solution. The product obtained is recovered by filtration and used without additional purification.
- the keto-ester obtained is dissolved in xylenes (100 ml) and ammonium acetate (19.5 g; 0.25 mol) is added. The mixture is heated under reflux for approximately 3 hours with elimination of excess ACONH4 and of the water released via a Dean-Stark trap. The reaction mixture is concentrated under reduced pressure, taken up in AcOEt and washed with a saturated NaHCO3 solution (100 ml) and a saturated NaCl solution (100 ml). The AcOEt phase is dried over Na2SO4, filtered and concentrated in vacuo. The crude product obtained is purified by flash chromatography on silica gel with a CHCl3 / MeOH 98/2 mixture as eluent. The fractions containing the pure product are combined and concentrated to give the product (2.52 g; 40%) in the form of a slightly brown foam which is used in the next step without further purification.
- step l .c The crude intermediate from step l .c is dissolved in acetic acid (50 ml) containing a 10% Pd catalyst on carbon (152 mg), then hydrogenated under a pressure of 50 psi of H2 for 18 hours at room temperature. The catalyst is removed by filtration and the filtrate heated at 70 ° C for 2 hours. The mixture obtained is concentrated under reduced pressure, dissolved in CH2Cl2 (100 ml) and washed with saturated NaHCO3 solution (100 ml). The CH 2 C1 2 layer is dried over Na2SO4, filtered and concentrated to give a viscous oil which is used in the next step without further purification. Spec. mass: 324.3 MH +.
- step 1.c The crude intermediate from step 1.c is dissolved in THF (25 ml) and treated at room temperature with an XM solution of BH3 in THF (25 ml) for half an hour then brought to reflux for 1 hour. The mixture is cooled by an ice bath and HCl AN (40 ml) is added dropwise at 0 ° C. The mixture is brought to room temperature then brought to reflux for 1 hour. The reaction medium is then cooled, filtered and concentrated under reduced pressure. The residue is treated with a saturated NaHCO3 solution (50 ml) and extracted with CH2Cl2 (3x 50 ml). The CH2CI2 phases are dried over Na2SO4, filtered and concentrated to give a slightly brown oil (1.63 g; 87% yield compared to steps l.c, l .d and e). Spec. mass: 310.3 MH +.
- step lf (3.54 g; 4.69 mmol) is dissolved in trifluoroacetic acid (TFA, 80 ml) containing triisopropylsilane (1.92 ml; 9.38 mmol) and the reaction mixture is stirred at room temperature under nitrogen for one hour. The reaction mixture is filtered and the filtrate concentrated under reduced pressure. The residue is extracted by trituration with an aqueous 0.1% TFA solution (6x 65 ml) and filtered. The crude product is purified by preparative HPLC on a Cl 8 column using a gradient from 0 to 20% of CH 3 CN in an aqueous solution of 0.1% TFA for 30 minutes. The pure product fractions are combined and lyophilized. The initial product is lyophilized twice from a dilute HCl solution to give the product in the form of its hydrochloride (740 mg; 32%). Spec. mass: 413.2 MH +.
- Compound 2 is prepared according to Scheme 1, steps b to g, according to a method analogous to that of Example 1, 2-bromoacetophenone replacing 2-bromo-2'-methylacetophenone in step b. Spec. mass: 399.2 MH +.
- Compound 3 is prepared according to Scheme 1, steps b to g, according to a method analogous to that of Example 1, Boc- (L) -Ser (Bzl) -OH replacing Cbz- (L) -cyclohexylalanine in step b and step d being replaced by deprotection using TFA and iP SiH according to a method analogous to reaction 1.g.
- the product is obtained in the form of a couple of diastereoisomers in a 2: 3 proportion. Spec. mass: 453.2 MH +.
- Compound 4 is prepared according to scheme 1, steps b to g, according to a method analogous to that of Example 3, Boc- (L) -Thr (Bzl) -OH replacing Boc- (L) -Ser ( Bzl) -OH in step b. Spec. mass: 467.3 MH +.
- the keto-ester obtained is triturated with a 1: 1 mixture of Et O: hexanes (2x 40 ml) and then suspended in xylenes (100 ml).
- Ammonium acetate (17.5 g; 0.23 mol) is added and the mixture is heated at reflux for approximately one and a half hours with elimination of AcONF j. in excess and water released through a Dean-Stark trap.
- the reaction medium is washed with a saturated NaHCO 3 solution (50 ml), dried over Na 2 S0 4 , filtered and concentrated in vacuo to give 6.66 g (98%) of the desired product.
- Intermedium 5.1 (746 mg; 2.00 mmol) is dissolved in THF (10 ml) containing triphenylphosphine (550 mg; 2.1 mmol) and phenol (198 mg; 2.1 mmol). The mixture is cooled to 0 ° C. under nitrogen and diethylazodicarboxylate (330 ⁇ l; 2.1 mmol) is added dropwise over 10 minutes. The reaction mixture is then stirred for 2 hours at room temperature. The reaction medium is then cooled again to 0 ° C. and triphenylphosphine (275 mg; 1.05 mmol) and phenol (99 mg; 1.05 mmol) are added.
- Product 5 is prepared from intermediate 5.n according to a method analogous to that of step l .g. Spec. mass: 274.3 MH +.
- Example 7 7- (2-arnino-1 -oxo-3-thiopropyl) -2- (2-methoxyphenyl) - 8- (phenylsulfonyIethyl) -5,6,7,8-tetrahydroimidazo [1,2a] pyrazine : 7:
- Step 7.n is carried out according to a method analogous to step 5.n.
- the crude product is used without further purification in the next step.
- Step 7.o is carried out according to a method analogous to step 5.o. Spec. mass: 501.3 MH +.
- R ' H or CH ,
- Cys - Cysteine, Cys-al Cysteinal
- Pen Penicillamine
- Pen-al Penicillaminylal PHARMACOLOGICAL SECTION
- MCF-7 cell lines human pleural cells, breast cancer
- the American Tissue Culture Collection Rockville, Maryland, USA.
- MCF-7 cells (2.10 cells / well) seeded in 24-well plates, are cultured for 5 days in Eagle medium modified by Dulbecco (Gibco -Brl, Cergy-Pontoise, France) supplemented with 10% fetal calf serum inactivated by heating (Gibco-Brl, Cergy-Pontoise, France), 50,000 units 1 of penicillin and 50 mg / 1 streptomycin (Gibco-Brl, Cergy -Pontoise, France), and 2 mM glutamine (Gibco-Brl, Cergy-Pontoise, France).
- the culture medium is replaced after two washes with a serum-free medium, whether or not supplemented with the agents specified for a time indicated in the various figures.
- Agents activating the production of cyclic AMP are then added at 37 ° C.
- the reaction is stopped after 30 minutes by removing the medium and rapidly adding 100 ⁇ l of 0.1N HCl solution. These extracts are frozen at -80 ° C until they are used.
- concentration of cAMP is measured using a commercial measurement kit (reference NEK033 from NEN, Les Ulis, France) following the manufacturer's instructions. Radioactivity is determined by a Gamma counter (Gamma Master-1277, LKB, Turku, Finland).
- MCF-7 cells (3000 cells / well) are cultured in 96-well plates in 80 ⁇ l of Eagle medium modified by Dulbecco (Gibco-Brl, Cergy-Pontoise, France) supplemented with 10% fetal calf serum inactivated by heating (Gibco-Brl, Cergy-Pontoise, France), 50,000 units / 1 of penicillin and 50 mg / 1 streptomycin (Gibco-Brl, Cergy-Pontoise, France), and 2 mM glutamine (Gibco-Brl. Cergy-Pontoise, France) were seeded on a 96-well plate on day 0.
- Eagle medium modified by Dulbecco Gibco-Brl, Cergy-Pontoise, France
- 10% fetal calf serum inactivated by heating Gibco-Brl, Cergy-Pontoise, France
- the cells were treated on day 1 for 96 hours with concentrations increasing up to 50 ⁇ M of each of the compounds to be tested. At the end of this period, the quantification of cell proliferation is evaluated by colorimetric test based on the cleavage of the tetrazolium salt WST1 by mitochondrial dehydrogenases in viable cells leading to the formation of formazan (Boehringer Mannheim, Meylan, France ). These tests are carried out in duplicate with 8 determinations per concentration tested. For each compound to be tested, the values included in the linear part of the sigmoid were used for a linear regression analysis and used to estimate the inhibitory concentration (IC50).
- MCF7 cells (5.105 cells / well) are cultured in 6-well plates in Eagle medium modified by Dulbecco (Gibco-Brl, Cergy-Pontoise, France) supplemented with 10% heat-inactivated fetal calf serum (Gibco- Brl, Cergy-Pontoise, France), a mixture of antibiotics: 50,000 units / 1 of penicillin and 50 mg / 1 of streptomycin (Gibco-Brl, Cergy-Pontoise, France) and 2 mM of glutamine (Gibco-Brl, Cergy -Pontoise, France).
- the cells After 24 hours of culture, the cells are incubated for 48 hours in medium not containing serum to bring the cells to the resting state. The cells are then treated for 1 hour either with compound I or with PD98059 (Calbiochem, France Biochem, Meudon, France), a specific inhibitor of MAP kinase activation. The cells are then stimulated (or not) for 5 minutes with 12.5 ng / ml of epidermal growth factor (EGF).
- EGF epidermal growth factor
- the reaction is stopped by two washes with PBS (Gibco-Brl, Cergy-Pontoise, France), at 4 ° C containing neither calcium nor magnesium and by addition of 150 ⁇ l of lysis buffer at 4 ° C, the composition of which is the following: 10 mM tris, 150 mM NaCl, 2 mM EGTA, 2 mM dithiothreitol, 1 mM PMSF, 2 mM orthovanadate, 10 ⁇ g / ml leupeptin and 10 ⁇ g / ml aprotinin.
- the proteins contained in the extracts are assayed using the Bradford method (Biorad reagents, Ivry-Sur-Seine, France).
- MAP kinase activity is measured using a commercial measurement kit (reference RPN 84, Amersham, Life Science, Les Ulis, France) by following the manufacturer's instructions. Radioactivity is determined using a Packard scintillation counter (Tricarb 5000CA).
- vaso-intestinal peptide was acquired from Bachem (Voisins le Bretonneux, France). Cholera toxin, forskolin, isoproterenol, prostaglandin E2 and PD 98059 were acquired from Calbiochem (France Biochem, Meodon, France). The compounds of formulas (I), (II), (III), (IV), (V), (VI) and (VII) were supplied by Biomeasure Inc. (Milford, MA, USA). All these compounds were used following the recommendations of their manufacturers.
- Figure 1 shows that the activation of adenylate cyclase by cholera toxin (200 ng / ml) or by forskolin (10 ⁇ M) leads to a very significant increase in the level of cyclic AMP.
- Pretreatment of the cells for 30 minutes with 30 ⁇ M of compound (I) does not modify the production of cyclic AMP induced by the direct activator of the adenylate cyclase, forskolin.
- the production of cyclic AMP stimulated by the direct activator of the subunit, the cholera toxin is strongly inhibited by the compound (I). This shows that adenylate cyclase, itself, is not modified by compound (I) and that the latter prevents the formation of the heterotrimeric complex.
- VIP has been presented as an extracellular ligand of a receptor coupled to protein G which stimulates the synthesis of cyclic AMP in human breast cancer cells.
- Figure 2 shows that VIP treatment of human MCF-7 breast cancer cells increases the intracellular amount of cyclic AMP in a concentration-dependent fashion.
- the VIP concentration of 10 nM which offers a quasi-optimal cyclic AMP production will be used for the following tests. This concentration is in agreement with the data already published concerning the human breast cancer cell line T47D.
- FIG. 3 shows that a 30-minute pretreatment of MCF-7 cells from in vitro cultures with the compound of formula (I) is sufficient to inhibit, in a concentration-dependent manner, the accumulation of cyclic AMP stimulated by the VIP. Almost complete inhibition was obtained at a concentration of 100 ⁇ M of the compound of formula (I).
- FIG. 4 shows that a treatment of one hour with the compound of formula (I) is sufficient to modify the response to VIP. Longer duration treatments (8 hours and 24 hours) continue to inhibit the production of cyclic AMP but the main effect is obtained very quickly.
- Compound (I) is also capable of inhibiting the formation of cyclic AMP induced by other agents which stimulate receptors with seven transmembrane domains.
- the activity of adenylate cyclase very greatly increased with prostaglandin E 2 is inhibited by a 30-minute treatment with compound (I). This suggests that the treatment of cells with compound (I) modifies the heterotrimeric form of the G proteins by dissociating the subunit of the ⁇ / ⁇ dimer.
- the inhibition of stimulation by VIP is not restricted to compounds of structure analogous to that of the compound of formula (I). As shown in Table I, the compounds (II), (III), (IV) , (V), (VI) and (VII) tested in the same model, are also capable of reducing the amount of cyclic AMP induced by VIP.
- FIG. 6 shows that a treatment of the cells for 1 hour with the compound (I) doubles the basal activity of the MAP kinase. This suggests that by preventing the formation of the heterotimeric complex, compound (I) releases the heterodimer - which, in turn, remains bound to the membrane and activates the ras pathway.
- FIG. 7 shows that after a stimulation of MAP kinase by growth factor EGF for 5 minutes, the activity of the enzyme is increased by approximately 7 times.
- Pretreatment for 1 hour of the cells either with compound (I) or with PD98059, a specific inhibitor of MAP kinase activation, reduced by 2 times the activity of MAP kinase.
- Table II indeed shows that compounds (I), (II), (III) and (IV) are capable of inhibiting the proliferation in vitro of human tumor cells MCF7.
- the cells are incubated for 30 minutes in the presence or not of compounds I, II, III and IV (30 ⁇ M) which are then stimulated by 10 " 8 M of VIP.
- the quantification of cyclic AMP is determined by radioimmunoassay.
- the results of the IC 50 are expressed in ⁇ M and represent the average of 2 experiments.
- Figure 1 Effect of compound I on the production of cyclic AMP stimulated by cholera toxin or forskolin in MCF7 cells
- the cells are incubated for 30 minutes in the presence or not of compound I (30 ⁇ M) and then stimulated either by cholera toxin (200 ng / ml) for 90 minutes or by forskolin (10 ⁇ 5 M) for 30 minutes.
- the cells are stimulated for 30 minutes by the VIP at the indicated concentrations.
- the quantification of cyclic AMP is determined by radioimmunoassay.
- the cells are incubated for 24 hours in the presence of increasing concentrations of compound I and then stimulated for 30 minutes with 10 " 8 M of VIP.
- the quantification of cyclic AMP is determined by radioimmunoassay.
- FIG. 4 Effect of incubation time of MCF7 cells in the presence of compound I on the production of cyclic AMP stimulated by VIP
- the cells are incubated for 1, 8 or 24 hours in the presence or not of compound I (30 ⁇ M) and then stimulated with 10 " 8 M of VIP.
- the quantification of cyclic AMP is determined by radioimmunoassay.
- Figure 5 Effect of compound I on the production of cyclic AMP stimulated by VIP, isoproterenol or prostaglandin E 2 in MCF7 cells
- the cells are incubated for 30 minutes in the presence or not of compound I
- Figure 6 Effect of compound I on the basal activity of MAP kinase in MCF7 cells.
- the cells deprived of serum for 48 hours, are treated for 1 hour with compound I (10 and 50 ⁇ M).
- Figure 7 Effect of compound I compared to PD98059 on the activity of MAP kinase in MCF7 cells.
Abstract
Description
Claims
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
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AU46222/99A AU756268B2 (en) | 1998-07-08 | 1999-07-05 | Use of cysteine derivatives for preparing a medicine for treating pathologies resulting from the formation of heterotrimeric G protein |
US09/743,208 US6544995B1 (en) | 1998-07-08 | 1999-07-05 | Use of cysteine derivatives for preparing a medicine for treating pathologies resulting from the formation of heterotrimeric G protein |
JP2000559111A JP2002520327A (en) | 1998-07-08 | 1999-07-05 | Use of a cysteine derivative for the manufacture of a medicament intended for treating pathologies resulting from the formation of a heterotrimeric G protein |
NZ509789A NZ509789A (en) | 1998-07-08 | 1999-07-05 | Use of cysteine derivatives for preparing a medicine for treating pathologies resulting from the formation of heterotrimeric G protein |
CA2336846A CA2336846C (en) | 1998-07-08 | 1999-07-05 | Use of cysteine derivatives for the preparation of a medicament intended to treat pathologies which result from the formation of the heterotrimeric g protein |
AT99929394T ATE459625T1 (en) | 1998-07-08 | 1999-07-05 | USE OF CYSTEIN DERIVATIVES FOR THE PRODUCTION OF A MEDICINAL PRODUCT INTENDED FOR THE TREATMENT OF PATHOLOGIES ARISING FROM THE PROTEIN G HET |
DE69942095T DE69942095D1 (en) | 1998-07-08 | 1999-07-05 | USE OF CYSTEIN DERIVATIVES FOR THE PREPARATION OF A MEDICAMENT DETERMINED FOR THE TREATMENT OF PATHOLOGIES ACCORDING TO THE PRODUCTION OF THE PROTEIN G HET |
EP99929394A EP1100801B1 (en) | 1998-07-08 | 1999-07-05 | Use of cysteine derivatives for preparing a medicine for treating pathologies resulting from the formation of heterotrimeric g protein |
NO20010029A NO319633B1 (en) | 1998-07-08 | 2001-01-03 | Use of cysteine derivatives for the manufacture of a drug for the prevention of obesity, the compound 7- (2-amino-1-oxo-3-thiopropyl) -8- (cyclohexylmethyl) -2- (2-methylphenyl) -5,6, 7,8-tetrahydroimidazo [1.2a] pyrazine, its use and its pharmaceutical composition |
US10/356,862 US7034025B2 (en) | 1998-07-08 | 2003-02-03 | Use of cysteine derivatives for the preparation of a medicament intended to treat pathologies which result from the formation of the heterotrimeric G protein |
US11/222,601 US20060035899A1 (en) | 1998-07-08 | 2005-09-09 | Use of cysteine derivatives for the preparation of a medicament intended to treat pathologies which result from the formation of the heterotrimeric G protein |
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FR98/08731 | 1998-07-08 | ||
FR9808731A FR2780974B1 (en) | 1998-07-08 | 1998-07-08 | USE OF IMIDAZOPYRAZINE DERIVATIVES FOR THE PREPARATION OF A MEDICAMENT FOR TREATING CONDITIONS RESULTING FROM THE FORMATION OF HETEROTRIMETER G PROTEIN |
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US09/743,208 A-371-Of-International US6544995B1 (en) | 1998-07-08 | 1999-07-05 | Use of cysteine derivatives for preparing a medicine for treating pathologies resulting from the formation of heterotrimeric G protein |
US09743208 A-371-Of-International | 1999-07-05 | ||
US10/356,862 Division US7034025B2 (en) | 1998-07-08 | 2003-02-03 | Use of cysteine derivatives for the preparation of a medicament intended to treat pathologies which result from the formation of the heterotrimeric G protein |
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PCT/FR1999/001609 WO2000002881A2 (en) | 1998-07-08 | 1999-07-05 | Use of cysteine derivatives for preparing a medicine for treating pathologies resulting from the formation of heterotrimeric g protein |
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US (3) | US6544995B1 (en) |
EP (1) | EP1100801B1 (en) |
JP (1) | JP2002520327A (en) |
AR (1) | AR019908A1 (en) |
AT (1) | ATE459625T1 (en) |
AU (1) | AU756268B2 (en) |
CA (1) | CA2336846C (en) |
DE (1) | DE69942095D1 (en) |
ES (1) | ES2341404T3 (en) |
FR (1) | FR2780974B1 (en) |
MY (1) | MY122419A (en) |
NO (1) | NO319633B1 (en) |
NZ (1) | NZ509789A (en) |
RU (1) | RU2268889C2 (en) |
TW (1) | TW561156B (en) |
WO (1) | WO2000002881A2 (en) |
ZA (1) | ZA200101061B (en) |
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DE10112925A1 (en) * | 2001-03-13 | 2002-10-02 | Erich Eigenbrodt | Use of sugar phosphates, sugar phosphate analogs, amino acids, amino acid analogs for modulating transaminases and / or the association p36 / malate dehydrogenase |
DE10112926A1 (en) * | 2001-03-13 | 2002-10-02 | Schebo Biotech Ag | Use of sugar phosphate or aminoacid having e.g. transaminase inhibiting activity, for treating tumors and/or sepsis or inducing immunosuppression |
FR2879460A1 (en) * | 2004-12-17 | 2006-06-23 | Sod Conseils Rech Applic | ANTI-PAIN ASSOCIATIONS COMPRISING A DIHYDROIMIDAZOPYRAZINE DERIVATIVE |
US7084135B1 (en) | 1998-12-31 | 2006-08-01 | Societe De Conseils De Recherches Et D'applications Scientifiques, Sas | Prenyl transferase inhibitors |
US8168637B2 (en) | 2001-07-06 | 2012-05-01 | Merck Sharp & Dohme Corp. | Beta-amino heterocyclic dipeptidyl peptidase inhibitors for the treatment of diabetes |
US8557801B2 (en) | 2009-07-09 | 2013-10-15 | Irm Llc | Compounds and compositions useful for the treatment of parasitic diseases |
US11738028B2 (en) | 2017-04-24 | 2023-08-29 | Novartis Ag | Therapeutic regimen |
Families Citing this family (5)
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FR2780974B1 (en) * | 1998-07-08 | 2001-09-28 | Sod Conseils Rech Applic | USE OF IMIDAZOPYRAZINE DERIVATIVES FOR THE PREPARATION OF A MEDICAMENT FOR TREATING CONDITIONS RESULTING FROM THE FORMATION OF HETEROTRIMETER G PROTEIN |
US20060052382A1 (en) * | 2002-12-20 | 2006-03-09 | Duffy Joseph L | 3-Amino-4-phenylbutanoic acid derivatives as dipeptidyl peptidase inhibitors for the treatment or prevention of diabetes |
FR2921658A1 (en) * | 2007-09-27 | 2009-04-03 | Sod Conseils Rech Applic | New pyrazolo-pyrazine derivatives are G protein inhibitors useful for preparing a medicament to treat or prevent disease or disorder e.g. cancer, non-tumor proliferative diseases, neurodegenerative diseases and parasitic diseases |
CN101824036A (en) * | 2009-03-05 | 2010-09-08 | 上海恒瑞医药有限公司 | Salt of tetrahydroimidazo [1,5-a] pyrazine derivative, preparation method and pharmaceutical application thereof |
CN112480122B (en) * | 2020-11-24 | 2022-03-22 | 中山大学 | Tetrahydroimidazo [1,2-a ] pyrazine compound, composition, preparation method and application thereof |
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DE10112926A1 (en) * | 2001-03-13 | 2002-10-02 | Schebo Biotech Ag | Use of sugar phosphate or aminoacid having e.g. transaminase inhibiting activity, for treating tumors and/or sepsis or inducing immunosuppression |
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US8557801B2 (en) | 2009-07-09 | 2013-10-15 | Irm Llc | Compounds and compositions useful for the treatment of parasitic diseases |
US9469645B2 (en) | 2009-07-09 | 2016-10-18 | Novartis Ag | Compounds and compositions for the treatment of parasitic diseases |
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US11738028B2 (en) | 2017-04-24 | 2023-08-29 | Novartis Ag | Therapeutic regimen |
Also Published As
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US20030162786A1 (en) | 2003-08-28 |
US7034025B2 (en) | 2006-04-25 |
FR2780974A1 (en) | 2000-01-14 |
CA2336846C (en) | 2010-03-16 |
TW561156B (en) | 2003-11-11 |
WO2000002881A3 (en) | 2000-03-16 |
DE69942095D1 (en) | 2010-04-15 |
EP1100801A2 (en) | 2001-05-23 |
NO319633B1 (en) | 2005-09-05 |
NO20010029D0 (en) | 2001-01-03 |
CA2336846A1 (en) | 2000-01-20 |
AR019908A1 (en) | 2002-03-20 |
FR2780974B1 (en) | 2001-09-28 |
JP2002520327A (en) | 2002-07-09 |
NZ509789A (en) | 2004-01-30 |
ZA200101061B (en) | 2002-10-02 |
ES2341404T3 (en) | 2010-06-18 |
ATE459625T1 (en) | 2010-03-15 |
US6544995B1 (en) | 2003-04-08 |
AU756268B2 (en) | 2003-01-09 |
EP1100801B1 (en) | 2010-03-03 |
RU2268889C2 (en) | 2006-01-27 |
US20060035899A1 (en) | 2006-02-16 |
MY122419A (en) | 2006-04-29 |
AU4622299A (en) | 2000-02-01 |
NO20010029L (en) | 2001-01-08 |
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